Redirect stderr to /dev/null in 1991/dds/README.md

This is to prevent annoying warnings about gets() - as changing this one
to use fgets() would be very complicated. This can be done for other
entries that use gets() that are either complicated to change or it's
decided to not change them. It won't prevent linker warnings (like with
gcc) but it'll prevent runtime warnings that often get interspersed with
the output of the program sometimes in confusing ways.

1991/dds/README.md

@@ -16,8 +16,8 @@ make all
 ## To run:
 
 ```sh
-./dds basic_program
-./a.out
+./dds basic_program 2>/dev/null
+./a.out 2>/dev/null
 ```
 
 [Cody Boone Ferguson](/winners.html#Cody_Boone_Ferguson) fixed a segfault that
@@ -49,14 +49,14 @@ make dds
 For example, the author suggests trying:
     
 ```sh
-./dds LANDER.BAS
-./a.out
+./dds LANDER.BAS 2>/dev/null
+./a.out 2>/dev/null
 ```
 
 What happens if you give the program a C program like itself? Try:
 
 ```sh
-./dds dds.c
+./dds dds.c 2>/dev/null
 ```
 
 You'll get errors yes but what does the generated file look like? What about
@@ -76,8 +76,8 @@ system(q-6);` which equates to `return system("cc a.c");` but clang by default,
 at least in macOS, has default -Werror and there were some warnings. This means
 that the compilation failed with clang (because it didn't use `make` so no
 [Makefile](Makefile) was used). In particular it would fail (at least with
-`LANDER.BAS`) due to a return from `main()` without a return value and the use
-of functions not yet declared.
+[LANDER.BAS](LANDER.BAS)) due to a return from `main()` without a return value
+and the use of functions not yet declared.
 
 Now as noted since the string `s` is complicated and because Cody did not want
 to inadvertently mess something up he changed that code to `system("make a");`
@@ -89,8 +89,8 @@ version:
 
 ```sh
 make clobber alt
-./dds.alt LANDER.BAS
-./a
+./dds.alt LANDER.BAS 2>/dev/null
+./a 2>/dev/null
 ```
 
 Thank you Cody for your assistance!